Hi, guys! This shouldn't be too controversial a question (yeah, right!), but do you believe that Amsoil Series 2K 0W-30/3K 5W-30 and Redline 5W-30/10W-30 are fairly comparable oils in terms of quality? I've been reading the posts here for a while, and it seems like Amsoil gets more attention; particularly when it comes to ragging on their marketing practices. Anyway, I have a turbo-charged 4-banger that is going to be receiving some serious performance mods in the future. Performance AND protection are crucial. Thanks!